Grain-separator



J. A. OLSON. Grain-Separator.

tum-224,220, v Pat ntedrep'fs, 1880.

' same.

UNI E STATES PAT NT OFFICE; 1

JOH A. OtsON, or RED WING, MINNESOTA.

GRAlN-SEPABATORL SPECIFICATION forming. part of Letters Patent No. 224,220, dated February 3, 1880.

Application filed Qctobcr 27, 1879.

To all whom it may concern:

Be it known that I, JOHN A. OLSON, of Red IVing, in the county of Goodhue and State of Minnesota, have invented certain new and useful Improvements in Grain Separators; and I do hereby declare that the following is a full, clear, and exact description of'the invention, which will enable others skilled in the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a longitudinal vertical section of a grainseparator embodying my improvement. Fig. 2 is a plan or top view of the Fig. 3 is a transverse vertical section taken on line as m in Fig. 2; and'Fig. 4 is a perspective view of the vibrating shaking bars detached from the machine.

Similar letters of reference indicate corresponding parts in all the figures.

This invention has relation, to the grainseparators of thrashing-machines; and it consists in the improvements hereinafter fully described, and particularly pointed out in the claims.

In the drawings, A is the frame or casing of myimprovedgrain-separator, which is provided with a feed-table, a, atone end. i Pivoted upon the two lower corners, at the opposite end of the frame, are two sector-shaped wings, B, which may be adjusted in position by pivoted clamps b. O D are crank-rods, which are journaled in the front and rear end, respectively, of frame A. Each of these rods is bent at each end at a right angle, so as to form two cranks, (denoted by c c d (1,) one at each end of each crank-rod, which lie in the same plane, but point in Opposite directions, while the intermediate set of cranks (denoted by the letters e and f, respectively) lie in a plane parallel to each other, at right angles to that of the end cranks, o 0 d cl.

E E are the shaker-bars, which are hung at each end upon the cranks e fof rods 0 D, with the exception of the two end bars, which are hung upon the end cranks, c d c d. It follows that by rotating the crank rods the shaker-bars E E will rise and descend alternately, while one of the end bars, at the point where bars E 1 are in a line with each other, is elevated above and the other sunk below the middle bars.

lhe shakerbars are curved or bent, as shown in Fig. l of the drawings, so as to receive the straw from the feed-table a, and carry it. up toward the discharge end or rear end of the machine, where it is received by the straw-carrier, which carries it to the stack.

By lowering the hinged boards or wings B B on each side down to the carrier the straw and chafi' are prevented from blowing 0K in windy weather on their passage from-the machine to the carrier, so that a straw-carrier of any heigl'it may be used, inasmuch as the wings B B can always be adjusted to make a close joint between the delivery end of the separator and the carrier.

The shaker-bars E E are armed with teeth 0 when the machine is to be used for ordi- 7o nary long straw; but when it is intended to be used for very short straw or flax, shaker- -bars of a diii'erent construction, but arranged similarly to the bars E E, are used, as will be seen by reference to Fig. 4 of the drawings, which shows a set of four bars pivoted upon rods cranked in like manner as the rods 0 D; but each bar consists, in this case, of two notched bars, h h, which are united by notched plates 9, the ends of which impinge upon the saw-teeth-like notches of the bars, so as to leave openplaces or steps between the plates, through which the grain or seed falls down upon the sieves or screens placed below. Otherwise the arrangement and operation of these bars do not differ. from that of the vibrating shaker-bars E E.

By this combination of the crank-rods O D, constructed as described, with the shakerbars, these are always evenly balanced, and

the two end bars, one on each side, which are hung upon cranks set at right angles to the cranks of the intervening bars and pointing in opposite directions to each other, will so hold the straw as to facilitate the operation 5 of the alternately-vibrating middle bars in carrying it rearward toward the discharge of grain-separators, the parallel notched bars end of the machine. h h, united on top by notched plates g, sub- Having thus described my invention, I stantially as set forth.

claim and desire to secure by Letters Patent In testimony that 1 claim the foregoing as 5 of the United Statesmy own I have hereto affixed my signature in 15 1. In a grain-separator, the combination, presence of two witnesses.

with the frame A and shakers E E, operat- JOHN ANTHONY OLSON. ing as described, of the hinged adjustable! Witnesses:

sectors B B, substantially as set forth. CHRISTIE PHILLIPS,

1o 2. As an improvement in the shaker-bars W. M. SWENEY. 

